Tottenham Hotspur's Son Heung-Min celebrates scoring his side's second goal of the game with Dele Alli during the UEFA Europa League match at White Hart Lane, London. PRESS ASSOCIATION Photo. Picture date: Thursday September 17, 2015. See PA story SOCCER Tottenham. Photo credit should read: Jed Leicester/PA Wire.

Tottenham Hotspur's South Korean striker Son Heung-Min (L) celebrates with Tottenham Hotspur's English defender Eric Dier (R) and Tottenham Hotspur's English midfielder Dele Alli (C) after scoring his second goal during the UEFA Europa League Group J football match between Tottenham Hotspur FC and Qarabag FK on September 17, 2015, at White Hart Lane in north London. AFP PHOTO / IAN KINGTONIAN KINGTON/AFP/Getty Images

Tottenham Hotspur's South Korean striker Son Heung-Min (C) celebrates scoring his second goal during the UEFA Europa League Group J football match between Tottenham Hotspur FC and Qarabag FK on September 17, 2015, at White Hart Lane in north London. AFP PHOTO / IAN KINGTONIAN KINGTON/AFP/Getty Images

Tottenham Hotspur's South Korean striker Son Heung-Min (2nd R) scores his team's first goal during the UEFA Europa League Group J football match between Tottenham Hotspur FC and Qarabag FK on September 17, 2015, at White Hart Lane in north London. AFP PHOTO / IAN KINGTONIAN KINGTON/AFP/Getty Images

Qarabag's Brazilian midfielder Richard Almeida (L) scores the first goal from a penalty past Tottenham Hotspur's French goalkeeper Hugo Lloris during the UEFA Europa League Group J football match between Tottenham Hotspur FC and Qarabag FK on September 17, 2015, at White Hart Lane in north London. AFP PHOTO / IAN KINGTONIAN KINGTON/AFP/Getty Images

LONDON, ENGLAND - SEPTEMBER 17: Kieran Trippier of Tottenham Hotspur holds off Reynaldo of FK Qarabag during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Kieran Trippier of Tottenham Hotspur holds off Reynaldo of FK Qarabag during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Son Heung-Min of Tottenham Hotspur celebrates scoring a goal with Kieran Trippier of Tottenham Hotspur during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Son Heung-Min of Tottenham Hotspur celebrates scoring a goal during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Son Heung-Min of Tottenham Hotspur celebrates scoring their second goal with Dele Alli of Tottenham Hotspur as Badavi Huseynov of FK Qarabag reacts during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Toby Alderweireld of Tottenham Hotspur challneges Reynaldo of FK Qarabag during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Erik Lamela of Tottenham Hotspur holds off Badavi Huseynov of FK Qarabag during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Son Heung-Min of Tottenham Hotspur scores their first goal during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Son Heung-Min of Tottenham Hotspur celebrates scoring their second goal during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Badavi Huseynov of FK Qarabag and Danny Rose of Tottenham Hotspur battle for the ball during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Dele Alli of Tottenham Hotspur breaks with the ball during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Reynaldo of FK Qarabag and Eric Dier of Tottenham Hotspur tussle for the ball during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabag holds off Andros Townsend of Tottenham Hotspur thduring the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabag tackles Tommy Carroll of Tottenham Hotspur during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabag tackles Tommy Carroll of Tottenham Hotspur during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabagcelebrates scoring the opening goal from the penalty spot during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabagcelebrates scoring the opening goal from the penalty spot during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabag scores the opening goal from the penalty spot during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Bryn Lennon/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Richard Almeida de Oliveria of FK Qarabag (L) celebrates scoring the opening goal from the penalty spot with team amtes during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

LONDON, ENGLAND - SEPTEMBER 17: Hugo Lloris of Tottenham Hotspur looks on as the teams line up during the UEFA Europa League Group J match between Tottenham Hotspur FC and Qarabag FK at White Hart Lane on September 17, 2015 in London, United Kingdom. (Photo by Scott Heavey/Getty Images)

Son Heung-min scored a quick-fire brace on his home debut as Tottenham came from behind to beat Qarabag in their Europa League opener on Thursday night.

The big-money summer signing was deployed as the lone striker with goalless Harry Kane rested for the visit of the Azerbaijan champions - the first time in almost seven months the England international has not started a game for Spurs.

But his replacement on the night showed why he was signed for a fee in excess of £20million as he scored two predatory goals in the space of three minutes to cancel out Richard Almeida's early penalty for the visitors - with Erik Lamela also in the scoresheet in the 3-1 win.

Son almost slipped in Lamela only to see Qarabag goalkeeper Ibrahim Sehic come off his line and collect as his side then set about taking the early initiative.

Kieran Trippier, making his Tottenham debut after his summer arrival from relegated Burnley, had started brightly but was caught square by Ansi Agolli and tripped the left-back to concede a penalty that was duly dispatched by Almeida to give Qarabag an unexpected lead.

The visitors were having the better of the opening exchanges as Tottenham could not settle, with Son flashing a shot well wide when given a rare sight of goal.

But the South Korea international levelled the game on 28 minutes as he turned home Andros Townend's low corner unmarked from inside the six-yard box.

His second followed just three minutes later as Dele Alli danced into the box before squaring for the ex-Bayer Leverkusen man to fire past Sehic and turn the match on its head.

Alli should have had his own goal but could not beat Sehic after being played in behind by Townsend, and soon after Toby Alderweireld headed over Trippier's deep cross.

The visitors were still a threat going forward and Danny Rose was lucky to get away with a chested backpass that was intercepted by Afran Ismayilov, who could only shoot wide after latching on to the loose ball.

Reynaldo was next to come close to an equaliser as the striker met Javid Taghiyev's pinpoint cross with a header that flashed over Hugo Lloris' crossbar.

Lamela came close at the start of the second half as he hit the post after running onto Alli's through ball before Son attempted a deft finish when he could have easily completed his hat-trick.

Qarabag had settled for hitting Tottenham on the break and, after Spurs debutant Kevin Wimmer had dallied when attempting a clearance, Dani Quintana flashed a shot just wide.

Son came off to a rousing ovation with just over 20 minutes remaining as Kane replaced him, with Clinton Njie coming on for his Spurs bow in place of Townsend, but it was Quintana who again came close as his header forced Lloris into action.

Lamela then killed the game off , chipping home after Kane had chased back and won the ball back from Rashad Sadygov before feeding the Argentinian forward.

Alli could not top a fine personal display with a goal as he saw a late shot dribble past the post but Spurs saw out stoppage time to open their Group J campaign with all three points.

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